Determines whether a pixel map requires 32-bit addressing mode for access to its pixel image.

Boolean PixMap32Bit (
    PixMapHandle pmHandle
);

Parameter descriptions

pmHandle

A handle to an offscreen pixel map.

function result

TRUE if a pixel map requires 32-bit addressing mode for access to its pixel image. If your application is in 24-bit mode, you must change to 32-bit mode.

DISCUSSION

To get a handle to an offscreen pixel map, first use the GetGWorldPixMap function. Then supply this handle for the pm parameter of PixMap32Bit.

AVAILABILITY

Supported in Carbon. Available in Carbon 1.0.2 and later when running Mac OS 8.1 or later.

© 2000 Apple Computer, Inc. (Last Updated 6/30/2000)